CN214189416U - Manual upset headrest of car seat - Google Patents

Abstract

The utility model discloses a manual turnover headrest of an automobile seat, which comprises a headrest rod and a headrest framework which is arranged at the upper end of the headrest rod in a pivoting way and has a hollow structure, wherein a locking structure is fixedly arranged on the headrest rod, and a locking groove is arranged on the locking structure; a lock piece which is arranged in a rotatable mode is arranged in the headrest framework, and the lock piece is provided with a lock head matched with the lock groove; the headrest is provided with at least one group of unlocking assemblies, the unlocking assemblies can operate the locking members to overcome the retaining force of the elastic retaining members and rotate to enable the locking heads to exit from the locking grooves, and the headrest framework can rotate around headrest rods. Linkage unblock upset of headrest skeleton is realized with the compact linkage structure that is more succinct relatively, improves structural reliability and stability, reduces manufacturing cost and the installation degree of difficulty simultaneously to cooperate multiple unblock subassembly, satisfy many gestures unblock demand, improve driver and crew and experience and feel.

Description

Manual upset headrest of car seat

Technical Field

The utility model relates to a car seat technical field, concretely relates to manual upset headrest of car seat.

Background

The headrest is an important component of a vehicle seat, and is mainly used for providing effective support for the head of a driver, and generally consists of a headrest framework and a headrest rod. With the continuous development of automobile technology, the requirements of drivers and passengers on the comfort and the applicability of seats are higher and higher, and the requirements of most drivers and passengers cannot be met by the common fixed headrest.

For this reason, some pivoted headrests have also been released on the market, like the utility model patent of publication number "CN 110077302A", the name is "folding car seat headrest skeleton", can realize the headrest skeleton unblock fast through release button to realize that the headrest skeleton is folding or open field of vision etc. but its linkage release structure still has the structure complicacy, the part is more relatively, installation cooperation difficulty scheduling problem, the headrest manufacturing cost has also been increased relatively simultaneously, and release structure is single, can not satisfy the requirement of multi-attitude unblock.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a manual upset headrest of car seat to linkage structure who simplifies relatively realizes the headrest unblock, reduction in production cost and the installation degree of difficulty.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a manual headrest that overturns of car seat which the key lies in:

a headrest rod;

a headrest frame pivotally mounted on an upper end of the headrest rod;

the locking structure is fixedly arranged on the headrest rod and is provided with a locking groove;

the locking piece is rotatably arranged in the headrest framework and is provided with a locking head matched with the locking groove;

the elastic retaining piece is used for retaining the locking head in the locking groove;

at least one group of unlocking assemblies can operate the locking piece to overcome the retaining force of the elastic retaining piece to rotate, and the locking head can withdraw from the locking groove, so that the headrest framework can rotate around the headrest rod.

Structure more than adopting, through unblock subassembly linkage locking piece, make its locking head withdraw from the locked groove the inside can, only have a middle linkage part of locking piece, spare part reduces, is favorable to reduction in production cost and the installation degree of difficulty, improves overall structure's stability and reliability simultaneously.

Preferably, the method comprises the following steps: the headrest rod is provided with a horizontally arranged installation section, the locking structure is in a cam shape and is fixedly sleeved in the middle of the installation section, the lock groove is located on the upper side of the locking structure and is arranged along the length direction of the installation section, and the left end and the right end of the lock groove are open. By adopting the scheme, the headrest rod is convenient to install quickly, the structure of the headrest rod is not required to be changed, the headrest rod is arranged along the length direction of the installation section along the lock groove, the rotation plane of the locking head is correspondingly limited to be parallel to the headrest framework, the installation occupation space is favorably reduced, and the whole headrest rod is more compact.

Preferably, the method comprises the following steps: the locking piece comprises a first operating arm and a second operating arm which form an included angle with each other and are integrated, a shaft hole is formed in the joint position of the first operating arm and the second operating arm, an installation shaft matched with the shaft hole is arranged on the headrest framework, and the installation shaft is close to one side of the headrest framework and is positioned above the headrest rod;

first control arm extends towards the bottom of headrest skeleton, and second control arm extends towards the one side of keeping away from the installation axle, and wherein the tip of second control arm has the unlocking arm of extending towards headrest skeleton bottom, and the tip of this unlocking arm forms locking head corresponds first control arm and second control arm and is equipped with first unblock subassembly and second unblock subassembly respectively on the headrest skeleton.

Scheme more than adopting, first operation portion, second operation arm and unblock arm integrated into one piece satisfy unblock and unblock demand promptly, correspond first control arm and second control arm simultaneously and set up first unblock subassembly and second unblock subassembly respectively to satisfy different positions unblock demand, further improve driver and crew's experience and feel.

Preferably, the method comprises the following steps: the first unlocking assembly comprises a spring button fixedly arranged on the side portion of the headrest framework, a trigger portion which is opposite to the spring button is arranged on the first control arm, and the spring button can push the first control arm to enable the locking piece to rotate in a pressing mode and enable the locking head to exit from the locking groove. The spring button on the side part is adopted to push the first control arm to move towards the direction close to the lock groove, so that the locking head is withdrawn from the lock groove, and an operator turns the headrest framework forwards immediately, thereby being convenient for meeting the requirement of unlocking from the side by the driver and passengers.

Preferably, the method comprises the following steps: the second unlocking assembly comprises a stay cable, a stay cable head of the stay cable is fixed at the end part of the second operating arm, a clamping hole matched with the stay cable head is formed in the second operating arm, and a through hole for the stay cable line of the stay cable to penetrate out is formed in the upper end of the headrest rod. By adopting the scheme, the second operation arm groove is pulled by the inhaul cable to rotate in the direction away from the lock groove, the linkage locking head exits from the lock groove, and the inhaul cable penetrates through the headrest rod to the side part of the seat cushion, so that a driver and passengers can operate the seat cushion at a lower position conveniently, and the operation is relatively labor-saving.

Preferably, the method comprises the following steps: the elastic retaining piece is a spring piece, one end of the elastic retaining piece is fixed on the headrest framework, the fixing point of the elastic retaining piece is located above the mounting shaft, and the other end of the elastic retaining piece is fixed on the locking piece, so that the unlocking arm has a tendency of rotating towards one side of the mounting shaft. Adopt the spring leaf as elasticity keeper, when the locking head rotated to withdraw from the locked groove, the spring leaf was in compression state, and when the locking head was in the locked groove, was in relative lax state, and was favorable to reducing the overall cost, and the later stage of being convenient for is torn open and is traded etc..

Preferably, the method comprises the following steps: the locking piece front side has the heavy groove that is used for installing the spring leaf, heavy groove has the open end that is located the installation axle top. By adopting the scheme, the occupied space of the spring piece is favorably reduced, the spring piece is limited by the sink groove, and the position stability of the spring piece is favorably ensured.

Preferably, the method comprises the following steps: and a balance arm is arranged between the unlocking arm and the second operating arm, the balance arm extends upwards in an inclined way towards one side far away from the mounting shaft, and the spring piece extends along the profiles of the second operating arm, the unlocking arm and the balance arm. The scheme is adopted, the whole gravity center of the locking piece is balanced through the balance arm, the locking piece is enabled to be closer to the intersection position of the unlocking arm and the second operating arm, the unlocking is relatively easier and labor-saving, the spring piece acts on the second operating arm, the unlocking arm and the balance arm simultaneously, the spring piece is prevented from sliding relatively with the fixed end, the mounting reliability and stability of the spring piece are relatively improved, and the service life is prolonged.

Preferably, the method comprises the following steps: all have arc friction muscle A and arc friction muscle B with the contact of locking piece on the outer wall of both sides around the headrest skeleton, wherein arc friction muscle A with install the coaxial setting of axle, arc friction muscle B and the coaxial setting in card hole. Scheme more than adopting reduces the area of contact of both sides and headrest skeleton around the locking piece, is favorable to reducing sliding friction resistance, reduces noise of rotation and wearing and tearing etc. can play certain guide effect simultaneously, further improves and rotates the smoothness degree.

Preferably, the method comprises the following steps: be equipped with between headrest pole and the headrest skeleton and keep the torsional spring, keep the torsional spring both ends to act on headrest pole and headrest skeleton respectively to make the headrest skeleton have relative headrest pole tendency of rotating forward, headrest skeleton bottom has the spacing groove that is used for injecing its limit position that rotates forward. By adopting the structure, after the locking head is withdrawn from the locking groove, the headrest framework has forward rotating force under the action of the retaining torsion spring, and the headrest framework can be automatically turned forward in place when the force of the retaining torsion spring is large enough, so that the operation is easier and more labor-saving.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the utility model provides a manual upset headrest of car seat to the linkage unblock upset of headrest skeleton is realized to the compact linkage structure that is more succinct relatively, improves structural reliability and stability, reduction in production cost and the installation degree of difficulty simultaneously, and cooperates multiple unblock subassembly, satisfies multi-attitude unblock demand, improves driver and crew and experiences and feels.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

FIG. 2 is an isometric view of FIG. 1;

FIG. 3 is a schematic view of the installation structure of the present invention;

FIG. 4 is a schematic view of an unlocking assembly mounting structure;

FIG. 5 is a schematic view of the relative positions of the unlocking assembly and the locking member;

FIG. 6 is a rear side view of the latch;

FIG. 7 is a front side view of the latch;

FIG. 8 is a schematic view of a locking arrangement;

FIG. 9 is a schematic view of the structure of the elastic holder;

FIG. 10 is a schematic view of the rear cover structure;

FIG. 11 is a front housing structure;

fig. 12 is a schematic view of the headrest framework assembly structure.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Referring to fig. 1 to 12, the manual turnover headrest for car seats mainly includes a headrest rod 1 and a headrest framework 2, in this embodiment, the headrest rod 1 is substantially "n" shaped, and the top of the headrest rod is bent towards the front, and mainly includes a horizontally disposed mounting section 10, and an insertion section 12 bent backwards from two ends of the mounting section 10 and extending downwards, wherein the headrest framework 2 is rotatably mounted on the mounting section 10, the mounting section 10 is provided with a locking structure 3, and the locking structure 3 is provided with a locking groove 30.

In this embodiment, an installation space is formed in the headrest framework 2, the installation space is mainly used for the installation section 10 to pass through, and meanwhile, a locking piece 4 is further arranged in the installation space, the locking piece 4 is installed in the installation space in a rotatable mode and is provided with a locking head 40 matched with the locking groove 30, the locking piece 4 is provided with an elastic retaining piece 5, and under the action of the elastic retaining piece 5, the locking head 40 can be kept clamped in the locking groove 30, at the moment, the headrest framework 2 is in a vertical posture, at least one group of unlocking assembly is further arranged in the headrest, the locking piece 4 can be operated through the unlocking assembly to overcome the retaining force of the elastic retaining piece 5, and the locking head 40 can be rotated to withdraw from the locking groove 30, so that the headrest framework 2 is unlocked, at the moment, the headrest framework 2 can rotate forwards around the installation section 10, and a forwards-folded posture is achieved.

Referring to fig. 3 and 10 to 12, in this embodiment, the headrest framework 2 mainly includes a front housing 2a having a substantially hollow box-shaped structure and a rear cover 2b having a cover-shaped structure, a mutually-matched fastening structure and a screw connection structure are provided between the front housing 2a and the rear cover 2b, at least two sets of arc-shaped grooves 24 are provided at lower ends of the front housing 2a and the rear cover 2b, after the two are installed, the two arc-shaped grooves 24 surround to form an installation hole through which the installation section 10 can pass, meanwhile, two ends of the bottom of the headrest framework 2 are provided with limiting grooves 23, the limiting grooves 23 are communicated with the installation hole, two ends of the installation section 10 can pass through, and meanwhile, the rear side of the limiting grooves 23 is open, and the headrest framework 2 mainly plays a role in limiting the rotation limit position of the headrest framework 2.

Referring to fig. 1, 2, 4 to 9, in the present embodiment, the locking structure 3 is substantially cam-shaped, and the small end of the locking structure faces backward, and is fixedly sleeved in the middle of the mounting section 10, the locking groove 10 is located on the upper side of the locking structure 3, i.e. above the headrest rod 1, and is parallel to the mounting section 10, and the left and right ends of the locking groove 30 are open to ensure that the locking head 40 can enter and exit from the locking groove 30 from the end.

The headrest of the present application is provided with two sets of unlocking assemblies, for this purpose, the locking member 4 mainly comprises a first operating arm 41 and a second operating arm 42 which are mutually angled, as shown in the figure, a shaft hole 43 is provided at the intersection of the first operating arm 41 and the second operating arm 42, and the headrest framework 2 is provided with an installation shaft 20 matching with the shaft hole 43, in this embodiment, the installation shaft 20 is positioned above the headrest rod 1 and close to the right side of the headrest framework 2, the first operating arm 41 extends towards the bottom of the headrest framework 2, the second operating arm 42 extends towards the left side of the headrest framework 2, meanwhile, one end of the second operating arm 42 far away from the installation shaft 20 is provided with an unlocking arm 44 extending towards the bottom of the headrest framework 2, the unlocking arm 44 and the first operating arm 41 are in a substantially parallel posture, while the end of the unlocking arm 44 is configured as a locking head 40 matching with the locking groove 30, in order to ensure that the locking head 40 can smoothly enter and exit from the locking groove 30 through rotation, and ensures stability in the locking groove 30, the end of the locking head 40 is designed to be arc-shaped, and its lowest point just abuts against the bottom wall of the locking groove 30 when it enters the locking groove 30.

The two groups of unlocking assemblies mainly comprise a first unlocking assembly arranged corresponding to a first operating arm 41 and a second unlocking assembly arranged corresponding to a second operating arm 42, as shown in the figure, the first unlocking assembly mainly comprises a spring button 6 fixedly arranged on the right side of a headrest framework 2, the spring button 6 is of a self-resetting structure, the spring button 6 is arranged along the width direction of the headrest framework 2 and extends into an installation space, the thickness of the position, facing the spring button 6, of the lower end of the first operating arm 41 is thickened to form a triggering part 410 matched with the spring button 6, under the action of an elastic retaining piece 5, when a locking head 40 of the locking piece 4 is positioned in a locking groove 30, the end part of the spring button 6 just contacts with the triggering part 410, when unlocking is carried out, only the spring button 6 needs to be pressed, after the elastic action of the elastic retaining piece 5 is overcome, the locking piece 4 can be pushed to integrally rotate clockwise, the locking head 40 is withdrawn from the left end of the locking groove 30, and at this time, the headrest framework 2 can rotate towards the front of the headrest rod 1 to achieve the forward-turning folding posture.

The second unblock subassembly includes cable 7, the cable head 70 of cable 7 is fixed at the tip of second control arm 42, have the card hole 420 that matches with cable head 70 on the second control arm 42, headrest pole 1 upper end has the perforating hole 11 that supplies the cable line of cable 7 to wear out, the cable line accessible perforating hole 11 of cable 7 penetrates headrest pole 1 to lead to the lateral part of seat cushion through the seatback, in order to provide lower operating position, and borrow headrest pole 1 and arrange the cable line, be favorable to preventing to leading to the fact the interference to headrest frame 2 rotates, improve its operational reliability.

In the present embodiment, a spring plate is used as the elastic holding member, and as shown in the figure, one end of the spring plate is fixed to the headrest frame 2, and the fixing point thereof is located above the mounting shaft 20, and the other end is fixed to the lock member 4, and the lock release arm 44 tends to rotate toward the side of the mounting shaft 20.

Specifically, the lock member 4 has a sunken groove 45 formed in the front side thereof to accommodate the spring plate, the sunken groove 45 having an open end 450, and the open end 450 being located above the shaft hole 43, and at the same time, the lock member 4 has a balance arm 46 formed integrally therewith, the balance arm 46 being located between the lock release arm 44 and the second manipulating arm 42 and extending obliquely toward the upper left side of the headrest frame 2, the sunken groove 45 being formed along the contour of the second manipulating arm 42, the lock release arm 44 and the balance arm 46 and mainly including a substantially V-shaped middle section 451 located on the lock release arm 44, and a downward section 452 and an upward section 453 respectively connecting both ends of the middle section 451, as shown in the figure, the downward section 452 being located on the second manipulating arm 42 and extending obliquely downward, the outer end thereof forming the open end 450, the upward section 453 being located on the balance arm 46 and extending obliquely upward, and the spring plate being shaped to accommodate the sunken groove 45, can imbed in heavy groove 45, its tip is worn out from open end 450 and is fixed on headrest framework 2, and the fixed point of spring leaf has certain contained angle between the part that is in descending section 452, at this moment, if lock 4 clockwise rotation, the spring leaf is then in the gesture that the shrink was stored energy, and can pass through interlude 451 and ascending section 453, can effectively restrict and take place relative slip between spring leaf and the heavy groove 45, ensure that the elastic force can be better on acting on lock 4, and can make the great effect of elastic force at locking head 40 through interlude 451.

On the other hand, because the spring leaf adopts metal material to make, can effectively increase the bulk strength of the headrest skeleton 2 that plastics made, improve the support ability, increase of service life etc..

On this basis, in this embodiment, an arc-shaped friction rib a21 and an arc-shaped friction rib B22 are simultaneously disposed on both the front side wall and the rear side wall of the installation space, as shown in fig. 1, fig. 2, fig. 4, fig. 10, and fig. 11, wherein the arc-shaped friction rib a21 is disposed coaxially with the installation shaft 20, the arc-shaped friction rib B22 is disposed coaxially with the locking hole 420, the front side surface and the rear side surface of the locking member 4 are both in contact with the arc-shaped friction rib a21 and the arc-shaped friction rib B22, specifically, the arc-shaped friction rib a21 corresponds to the rotation ranges of the first manipulating arm 41 and the second manipulating arm 42, and the arc-shaped friction rib B22 mainly corresponds to the rotation range of the unlocking arm 44, so as to reduce the rotation friction resistance of the locking member 4 on the one hand, and play a certain guiding role on the other hand, thereby ensuring smooth unlocking and resetting of the locking member 4.

Referring to fig. 8 and 11, in order to further improve the convenience of operation in this embodiment, a holding torsion spring 8 is disposed between the headrest rod 1 and the headrest framework 2, as shown in the figure, the rear end of the locking structure 3 has a hanging shaft 31 disposed along the length direction of the mounting section 10, two hanging grooves 25 are disposed in the front housing 2a corresponding to the two ends of the hanging shaft 31, two holding torsion springs 8 are symmetrically disposed on the left and right sides of the locking structure 3, and the two ends are respectively fixed to the hanging shaft 31 and the hanging grooves 25, when the headrest framework 2 is in the vertical posture, and the locking head 40 is in the locking groove 30, the holding torsion spring 8 is in the pre-compression state, and when the locking head 40 is withdrawn from the locking groove 30, the headrest framework 2 rotates forward under the action of the holding torsion spring 8, and under the limitation of the limiting groove 23, the forward-folded posture can be reached easily and laborsavingly.

Referring to the manual turnover headrest of the car seat shown in fig. 1 to 12, when the manual turnover headrest is installed, the locking structure 3 is firstly fixedly installed on the headrest rod 1, then the manual turnover headrest is fixed in the front shell 2a together, the spring button 6 and the cable 7 are correspondingly installed, finally the rear cover 2b is clamped and fixed with the front shell 2a, the headrest is assembled, the assembled headrest is installed on the seat, and the cable 7 is connected with an operating component on the seat.

During the use, driver and crew can unblock headrest skeleton 2 through the mode of pressing spring button 6 under the high enough condition in position, and when being in the lower position, then the unblock is carried out to accessible cable 7, after the unblock is accomplished, only need promote headrest skeleton 2 forward gently, need not promote even, under the effect that keeps torsional spring 8, headrest skeleton 2 can rotate forward, offsets with spacing groove 23 until headrest pole 1.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (10)

1. A manual headrest that overturns of car seat, its characterized in that includes:

a headrest rod (1);

a headrest framework (2) which is pivotally mounted at the upper end of the headrest rod (1);

the locking structure (3) is fixedly arranged on the headrest rod (1) and is provided with a locking groove (30);

the locking piece (4) is rotatably arranged in the headrest framework (2) and is provided with a locking head (40) matched with the locking groove (30);

an elastic holding member (5) for holding the locking head (40) in the lock groove (30);

and at least one group of unlocking assemblies, which can operate the locking piece (4) to rotate against the retaining force of the elastic retaining piece (5) to withdraw the locking head (40) from the locking groove (30) so that the headrest framework (2) can rotate around the headrest rod (1).

2. The manual headrest of claim 1, wherein: the headrest rod (1) is provided with a horizontally arranged installation section (10), the locking structure (3) is in a cam shape and is fixedly sleeved in the middle of the installation section (10), the locking groove (30) is located on the upper side of the locking structure (3) and is arranged along the length direction of the installation section (10), and the left end and the right end of the locking groove (30) are open.

3. The manual headrest of claim 1, wherein: the locking piece (4) comprises a first operating arm (41) and a second operating arm (42) which form an included angle with each other and are constructed into a whole, a shaft hole (43) is formed in the joint position of the first operating arm (41) and the second operating arm (42), a mounting shaft (20) matched with the shaft hole (43) is arranged on the headrest framework (2), and the mounting shaft (20) is close to one side of the headrest framework (2) and is positioned above the headrest rod (1);

the first operating arm (41) extends towards the bottom of the headrest framework (2), the second operating arm (42) extends towards one side far away from the mounting shaft (20), an unlocking arm (44) extending towards the bottom of the headrest framework (2) is arranged at the end of the second operating arm (42), the end of the unlocking arm (44) forms the locking head (40), and a first unlocking assembly and a second unlocking assembly are arranged on the headrest framework (2) corresponding to the first operating arm (41) and the second operating arm (42) respectively.

4. The manual headrest of claim 3, wherein: the first unlocking assembly comprises a spring button (6) fixedly arranged on the side portion of the headrest framework (2), a trigger portion (410) opposite to the spring button (6) is arranged on the first operating arm (41), and the spring button (6) can push the first operating arm (41) in a pressing mode to enable the locking piece (4) to rotate and enable the locking head (40) to exit from the locking groove (30).

5. The manual headrest of claim 3 or 4, wherein: the second unlocking assembly comprises a stay cable (7), a stay cable head (70) of the stay cable (7) is fixed at the end of the second operating arm (42), a clamping hole (420) matched with the stay cable head (70) is formed in the second operating arm (42), and a through hole (11) for a stay cable line of the stay cable (7) to penetrate out is formed in the upper end of the headrest rod (1).

6. The manual headrest of claim 3, wherein: the elastic retaining piece (5) is a spring piece, one end of the elastic retaining piece is fixed on the headrest framework (2), the fixed point of the elastic retaining piece is positioned above the mounting shaft (20), and the other end of the elastic retaining piece is fixed on the locking piece (4), so that the unlocking arm (44) has the tendency of rotating towards the side where the mounting shaft (20) is located.

7. The manual headrest of claim 6, wherein: the front side of the locking piece (4) is provided with a sinking groove (45) for mounting the spring piece, and the sinking groove (45) is provided with an open end (450) positioned above a mounting shaft (20).

8. The manual headrest of claim 6 or 7, wherein: the unlocking arm (44) and the second operating arm (42) are provided with a balance arm (46) therebetween, the balance arm (46) extends obliquely upwards towards the side far away from the mounting shaft (20), and the spring piece extends along the contour of the second operating arm (42), the unlocking arm (44) and the balance arm (46).

9. The manual headrest of claim 5, wherein: all have arc friction muscle A (21) and arc friction muscle B (22) with locking piece (4) contact on the outer wall of headrest skeleton (2) front and back both sides, wherein arc friction muscle A (21) with installation axle (20) coaxial setting, arc friction muscle B (22) and card hole (420) coaxial setting.

10. The car seat manual flip headrest according to any one of claims 1 to 4, characterized in that: be equipped with between headrest pole (1) and headrest skeleton (2) and keep torsional spring (8), keep torsional spring (8) both ends to act on headrest pole (1) and headrest skeleton (2) respectively to make headrest skeleton (2) have relative headrest pole (1) tendency of rotating forward, headrest skeleton (2) bottom has and is used for injecing its spacing groove (23) of rotating limit position forward.

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